Results 21 to 30 of about 355,296 (307)

Evaluation of peanut hulls as an alternative to bleaching clays

open access: yesGrasas y Aceites, 2011
Peanut hulls (PNH) were carbonized at different temperatures, times, and evaluated at different concentrations as an alternative to bleaching clays. Evaluation of bleached crude soybean oil with PNH was based on their delta free fatty acids, reduction in
M. M. M. Hassanein   +2 more
doaj   +1 more source

Propylenated fatty acids as emulsifiers

open access: yesGrasas y Aceites, 1999
Hydroxy propylenyl stéarate, palmitate, laurate, oléate and linoleate were prepared by reaction of propylene oxide with fatty acid at 160 °C for five hours stirring in presence of potassium hydroxide as a catalyst. Physico-chemical properties of the five
Y. El-Shattory   +2 more
doaj   +1 more source

PRELIMINARY STUDIES ON THE ENZYMATIC TREATMENT OF COTTONSEED FOR HIGHER OIL YIELD [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2002
Enzymatic pretreatment of oilseeds prior to oil extraction is an alternative to the thermal/hydrothermal treatment carried out in the industry to degrade the cell walls.
S. Omar, Elham Yousef, Fakhriya Taha,
doaj   +1 more source

Chemical characteristics and fatty acid composition on oils and fats stored in different packaging materials

open access: yesGrasas y Aceites, 1996
Bleached cottonseed oil, partially hydrogenated palm oil and margarine were stored in metal (tin) cans and white plastic (polyethylene) bottles with air in head space and served at room temperature during the whole period of investigation. The analytical
Y. El-Shattory, M. A. Saadia, F. Saeid
doaj   +1 more source

Studies on changes in lipid profiles of new varieties of rape during seed maturation

open access: yesGrasas y Aceites, 2001
Changes in lipids of three newly developed varieties of rapeseed during seed maturation were studied. Triacylglycerol molecular species, fatty acid composition, whole sterol, and four sterol lipids as well as tocopherol were determined at different ...
Safinaz M. El-Shami   +2 more
doaj   +1 more source

Antioxidant effect of an ozonized theobroma oil formulation on damaged-inflammatory rat skin

open access: yesGrasas y Aceites, 2011
The aim of this study was to determine whether a cosmetic formulation elaborated with ozonized theobroma oil may exert beneficial effects in the restoring of the antioxidant activity on the skin of rats previously irradiated with ultraviolet light. 0.5 g
Yaima Sánchez   +4 more
doaj   +1 more source

Thermal stability of some metal-palmitate soaps which find various industrial applications

open access: yesGrasas y Aceites, 2001
The soaps of alkaline earth's and transition elements and closed ‘d’ orbitals were prepared by the double decomposition method by the reaction between metallic salts and sodium palmitate. The thermal stability of these soaps was studied in order to throw
M. F.R. Fouda   +3 more
doaj   +1 more source

Detailed studies on some lipids of Silybum marianum(L.) seed oil

open access: yesGrasas y Aceites, 2003
Eight lipid patterns of Silybum marianum (L.) Gaertn seed oil, not hitherto reported, (20%) have been elucidated in this laboratory using capillary GLC and HPLC as main tools of analysis.
M. Hassan El-Mallah   +2 more
doaj   +1 more source

Studies on colour fixation of the oil of mature, immature and damaged cottonseed

open access: yesGrasas y Aceites, 1994
Oil was extracted from mature, inmature and damaged cottonseed with the acetone-hexane-water azeotrope (53:44:3 by volume). Mature cottonseed oil (M), 10% immature cottonseed oil in mature cottonseed oil (MIM) and 10% damaged cottonseed oil in mature ...
H. E. Helmy   +2 more
doaj   +1 more source

Flavour changes due to effect of different packaging materials on storing of cottonseed oil, hydrogenated oil and margarine.

open access: yesGrasas y Aceites, 1997
Bleached cottonseed oil, partially hydrogenated palm oil and margarine were packed in metal cans and white plastic bottles and stored for seven months at room temperature on side bench.
Y. El-Shattory, M. A. Saadia, F. H. Said
doaj   +1 more source

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